Việt
cóng suất có ích
Anh
useful efficiency
Đức
Wirkungsgrad in %
Wirkungsgrad
Pháp
rendement utile
useful efficiency /SCIENCE,ENG-MECHANICAL/
[DE] Wirkungsgrad in %
[EN] useful efficiency(expressed in %)
[FR] rendement utile(exprimé en pourcentage)
useful efficiency /ENVIR,ENERGY/
[DE] Wirkungsgrad
[EN] useful efficiency
[FR] rendement utile